Pair of handlebar extension bars



FIG. 1 is a perspective view of the pair of handlebar extension bars, showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof; and,

FIG. 6 is a side view thereof.

The dashed lines are included for illustrating environmental structure and form no part of the claimed design. 

I claim an ornamental design for the pair of handlebar extension bars, as shown and described. 